A Brazilian Navy S-70B Seahawk hit the old frigate with a Kongsberg-built Penguin anti-ship missile while the BNS Rademaker, also a former Royal Navy frigate, hit the Bosísio with an Exocet missile.

The operation also achieved a first for the Brazilian Navy when the Seahawk helicopter was loaded with ordnance from a navy ship at sea for the first time.

The BNS Bosísio was a former Royal Navy Type 23 frigate (HMS Brazen) purchased by Brazil in November 1994 and commissioned into the Brazilian Navy in August 1996.

The Brazilian Navy decommissioned the frigate in September 2015.

The Penguin anti-ship missile was originally developed in a collaboration between the Norwegian Defence Research Establishment and Kongsberg Vapenfabrikk starting in the early 1960s, with financial support from the U.S. and West Germany.

The Penguin anti-ship missiles is acquired for use in Brazilian Navy’s S-70B helicopters at a cost of €33 million